Q35 of 47 Page 13

Why the voice of men, women and children are different?

The vocal cords in men are about 20mm long. In women there are about 5mm shorter. Children have very short vocal cords. That is the reason that the voice of men, women and children are different.

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33 Define vocal cords. 34 How the muscles attached to vocal cards regulate sound? 36 What is eardrum? How does it is play an important role in hearing? 37 On which property of vibrations does the loudness of sound depends?